CN202473515U - Oil tank of transformer - Google Patents
Oil tank of transformer Download PDFInfo
- Publication number
- CN202473515U CN202473515U CN2012200796506U CN201220079650U CN202473515U CN 202473515 U CN202473515 U CN 202473515U CN 2012200796506 U CN2012200796506 U CN 2012200796506U CN 201220079650 U CN201220079650 U CN 201220079650U CN 202473515 U CN202473515 U CN 202473515U
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- Prior art keywords
- transformer
- tank
- oil tank
- utility
- model
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- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired - Fee Related
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Abstract
The utility model discloses an oil tank of a transformer, comprising tank walls at four sides and a tank bottom, wherein the upper ends of the tank walls are provided with tank edges, and the four sides of the tank walls are provided with copper plates. As the four sides of the oil tank are provided with the copper plates, the danger of local overheat can be eliminated, and the extra loss is greatly reduced.
Description
Technical field
The utility model relates to the transformer technology field, particularly a kind of structure of oil tank of transformer.
Background technology
At present, fuel tank all adopts metal materials such as steel plate.In transformer when operation,, winding will produce magnetic field after through electric current, and owing to the transformer core in the winding is good magnetic conductor, most of magnetic flux is all in iron core.But also have some magnetic fluxs to be transmitted on the oil tank of transformer, thereby the local overheating phenomenon appear in inductive loop heating in fuel tank, has not only increased the transformer caloric value, has also increased the transformer supplementary load loss through air-gap or transformer oil.Especially concerning high-power transformer, when magnetic flux density surpasses certain numerical value, its stray loss will significantly increase.According to the interrelated data introduction, in jumbo load loss, stray loss accounts for the 30%-40% of load loss.Therefore, through improvement, be very important to reduce stray loss to the fuel tank of prior art.
The utility model content
The purpose of the utility model is exactly the problem that exists to existing oil tank of transformer, and a kind of supplementary load loss and oil tank of transformer that reduces the transformer heating of reducing is provided.
The purpose of the utility model is to realize through such technical scheme, and a kind of oil tank of transformer comprises that the upper end of tank wall is provided with the case edge at the bottom of the tank wall and case at four sides, it is characterized in that being provided with copper coin around the tank wall.
During practical implementation, be welded with connector on the tank wall, copper coin is fixed on the tank wall face through connector.
During practical implementation, the thickness of copper coin is between the 3mm-5mm.If shield too thickly, both uneconomical, shield effectiveness can obviously not improve yet.
Install copper coin additional as liner at inner wall of oil tank, play electric screening action, can reduce transformer stray loss effectively, eliminated the danger of local overheating, improve the operational reliability of transformer through shielding.After leakage field gets into aluminium sheet, produce eddy current loss therein and set up back ampere-turns thereupon, thereby reduce the leakage flux that gets into oil tank wall, also just reduced dispersion loss in the fuel tank simultaneously.Big for capacity; The technical scheme of transformer adopting the utility model that voltage is not really high; It not only can reduce the stray loss in the fuel tank, simultaneously leakage field line of force degree of crook is reduced, thus the time reducing to the eddy current loss that the leakage field component produces in the winding wire by the width of cloth.
The beneficial effect of the utility model is: the copper coin that is provided with around the utility model tank wall has been eliminated the danger of local overheating, and supplementary load loss are reduced significantly.
Description of drawings
Below in conjunction with accompanying drawing and embodiment utility model is further specified.
Fig. 1 is the structural representation of the utility model embodiment.
Among the figure: 1, at the bottom of tank wall 2, the case 3, case along 4, connector 5, copper coin.
Embodiment is done the explanation of further indefiniteness to the utility model below in conjunction with accompanying drawing and embodiment: among Fig. 1; A kind of oil tank of transformer; At the bottom of the tank wall 1 that comprises the four sides and the case 2, the upper end of tank wall 1 is provided with case along 3, is welded with connector 4 on the tank wall 1; Copper coin 5 is fixed on 1 of the tank wall through connector 4, and the thickness of copper coin is 4mm.Install copper coin additional as liner at inner wall of oil tank, play electric screening action, can reduce transformer stray loss effectively, eliminated the danger of local overheating, improve the operational reliability of transformer through shielding.
At last, it is also to be noted that what more than enumerate only is the specific embodiment of the utility model.Obviously, the utility model is not limited to above embodiment, and many distortion can also be arranged.All distortion that those of ordinary skill in the art can directly derive from the disclosed content of the utility model or associate all should be thought the protection range of the utility model.
Claims (3)
1. an oil tank of transformer comprises that the upper end of tank wall is provided with the case edge at the bottom of the tank wall and case at four sides, it is characterized in that being provided with copper coin around the tank wall.
2. a kind of oil tank of transformer according to claim 1 is characterized in that being welded with on the tank wall connector, and copper coin is fixed on the tank wall face through connector.
3. a kind of oil tank of transformer according to claim 1 and 2, the thickness that it is characterized in that copper coin is between the 3mm-5mm.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2012200796506U CN202473515U (en) | 2012-03-06 | 2012-03-06 | Oil tank of transformer |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2012200796506U CN202473515U (en) | 2012-03-06 | 2012-03-06 | Oil tank of transformer |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202473515U true CN202473515U (en) | 2012-10-03 |
Family
ID=46921659
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2012200796506U Expired - Fee Related CN202473515U (en) | 2012-03-06 | 2012-03-06 | Oil tank of transformer |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN202473515U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104289821A (en) * | 2014-07-07 | 2015-01-21 | 正泰电气股份有限公司 | Transformer copper shield mounting method |
-
2012
- 2012-03-06 CN CN2012200796506U patent/CN202473515U/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104289821A (en) * | 2014-07-07 | 2015-01-21 | 正泰电气股份有限公司 | Transformer copper shield mounting method |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C17 | Cessation of patent right | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20121003 Termination date: 20130306 |